Leaf Characteristics Practice Test

Compound leaves have:

• many leaves per plant instead of a single leaf per plant

• alternate leaf attachment instead of opposite leaf attachment

• palmately netted leaves instead of pinnately netted leaves

• two or more leaflets instead of a single blade

• parallel veins instead of netted veins

What is the broad, flat thin part of a leaf called?

(a)  

What is the primary characteristic of deciduous trees?

• They retain their leaves year-round

• They drop their leaves each autumn

• They have needle-like leaves

• They are always evergreen

What is the defining characteristic of a palmately compound leaf?

Leaflets radiating from a common point at the end of the stem

• Leaflets radiating from a common point at the end of the stem

• Leaflets attached at various points along the stem

• Leaflets forming a circular pattern around the stem

Explain the difference between a simple leaf and a compound leaf.

• A simple leaf has a single blade, while a compound leaf consists of multiple leaflets.

• A simple leaf is always larger than a compound leaf.

• A simple leaf has a whorled arrangement, while a compound leaf has an alternate arrangement.

• A simple leaf is only found in coniferous plants, while a compound leaf is found in deciduous plants.

What is the defining characteristic of a pinnately compound leaf?

• Leaflets are arranged in a circular pattern around the stem.

• Leaflets are arranged on either side of a central main stem or petiole.

• Leaflets are all attached at a single point on the stem.

• Leaflets are arranged in a single line along the stem.

A plant with adjacent pairs of opposite leaves at right angles to one another is said to have a (a)   leaf arrangement

If a botanist identifies a tree with a pinnately compound leaf that has a terminal leaflet, what can be inferred about the leaf's structure and its position on the stem?

• The leaf is simple and located at the base of the stem.

• The leaf has multiple leaflets and the terminal leaflet is the last in the sequence from the bud.

• The leaf is compound but lacks a terminal leaflet.

• The leaf is opposite in arrangement and has no terminal leaflet.

Which of the following terms is used to describe leaf margins that are smooth?

• Serrate

• Lobbed

• Entire

• Dentate